The Mayhew Hammerless Cold Chisel and Hammer is spring powered and delivers up to 3,500 lb. of striking force. Work with precision and accuracy by simply placing the tool on the work surface, pulling back on the spring and releasing for a safe alternative to using a hammer, avoiding the chance of miss-hits and glancing blows. Made in the USA, this chisel and hammer set features durable steel construction and comes backed by a lifetime warranty.